what did you do to your motorized bicycle today?

Discussion in 'Motorized Bicycle General Discussion' started by Skarrd, Oct 25, 2010.

  1. moonerdizzle

    moonerdizzle New Member

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    Re: what did you do to your motor bike today?

    ported my jug last night and started reshaping the transfer ports, now to do the transfer ports on the case. Got a brand new motor, and im building it up to run reverse jug. all new bearings going in it. this motor did have a surprise in it tho. the crank shaft halfs are one piece, gone are the bolt on weights. [​IMG]

    you can see the balancing holes drilled in the rod, and yes, that is oil, the motor came shipped with some oil in it, that makes me happy, that means that if i didnt tear into the motor, it would have been lubricated for the first firing. there was also oil in the cylinder and on the piston, which is another good sign, that means they didnt shove the piston in dry.
     
  2. SavageBlunts904

    SavageBlunts904 New Member

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    Re: what did you do to your motor bike today?

    Spent some fun time putting a SBP tuner pipe on my bike. Cleaned up the head/cylender and carb. Rough fit of the pipe on right now and tomorrow i will make a steel mount for hanging the pipe with out movement. Cant wait untill I get the bike back up and running with this new sound.

    Would like feedback on a nice way to mount the pipe. There is a mount welded at the bottom of the inside of the expansion chamber. Thinking i will mount a L bracket where the kickstand goes and using this piece of steel bar 1" wide to attach it with a nice ruber bushing on the pipe end of the bar.
     

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  3. Bradb1287

    Bradb1287 New Member

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    Re: what did you do to your motor bike today?

    hopefully gunna be able to go for a ride later today. Haven't rode my bike since the time change, and working 2 jobs. My buddy and I are testing out our spring tensioners we made for our bikes. Keeping my fingers crossed for a ride tonight.
     
  4. fatdaddy

    fatdaddy New Member

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    Re: what did you do to your motor bike today?

    If yer tensioner works out, shoot us a pic of it.
    fatdaddy.usflg
    IT'S YOUR BIKE, BUILD IT YOUR WAY.
     
  5. obesepolice

    obesepolice New Member

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    Re: what did you do to your motor bike today?

    Got some high friction clutch material today. ill make mine this weekend. I could possibly be persuaded into Making some more for others.
     
  6. GasX

    GasX New Member

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    Re: what did you do to your motor bike today?

    Repacked the transmission with lithium grease, repacked the coaster hub with high temp grease, and installed a new exhaust gasket. Went for a ride the transmission noise is less - yay. Then I ran out of gas 1/2 mile from home... Doh!
     
  7. Bradb1287

    Bradb1287 New Member

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    Re: what did you do to your motor bike today?

    If I figured this out there should be a pic of the Frankenstein tensioner. It worked. Only I didn't have that much gas

    image.jpg
     
  8. fatdaddy

    fatdaddy New Member

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    Re: what did you do to your motor bike today?

    Venders charge a lot of cash for that same design. Good job bro, Glad it worked out for you.
    fatdaddyusflg
    IT'S YOUR BIKE, BUILD IT YOUR WAY.
    I just noticed, It's a cut off door hinge. THAT'S GREAT.
     
    #4868 fatdaddy, Jan 10, 2013
    Last edited: Jan 10, 2013
  9. Wickedest1

    Wickedest1 Member

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    Re: what did you do to your motor bike today?

    The spring...whats the specs on it...I've been searching for a sturdy enough spring...and that tensioner looks awesome...great job...
     
  10. Bradb1287

    Bradb1287 New Member

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    Re: what did you do to your motor bike today?


    Thanks for the complement.

    I just threw the packaging away last night too. I do believe that the spring is .105 gauge and 1 3/4 inch. Not sure on the weight it needs but it took two people to get it on. Some of the other springs were too long so it took a few trips to the hardware store to get it figured out.
     
  11. MEASURE TWICE

    MEASURE TWICE Well-Known Member

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    Re: what did you do to your motor bike today?

    I ground down a 14mm crescent wrench so that the bearing keepers for my rear hub which is threaded and has two flats I could turn it back against the thin nuts that are next to them. Its an older hub, there are no races.

    For both sides I can do this and now I have just the right amount of end play and it will not change when I torque the nuts to hold the axle in the drip outs.

    That metal did take time on the angle grinder, but it is really an invaluable tool now.

    Also finally got to starting on my turn buckle design for dual drop out tensioning for my vee-belt rear wheel pulley drive on my 3hp 40:1 ratio Briggs bike. It will be a dirt bike and also get the fish cover for art vehicle parade speeding below 5mph.

    When this belt tensioner is done, I have just one more of the three I have on the bike with the twin stacked jack shafts. The last one is using an flat idler pulley which is on order. I'll make it slotted like the one between the upper and lower jack shafts or maybe have a spring loaded idler on the back of the vee-belt.

    MT
     
  12. d_gizzle

    d_gizzle New Member

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    Re: what did you do to your motor bike today?

    Hey MT,that tool you made is called a cone wrench I believe.
     
  13. Wickedest1

    Wickedest1 Member

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    Re: what did you do to your motor bike today?


    Ineed it is dgizzle...but they aren't cheap and I like his idea...definitely an invaluable tool...
     
  14. MEASURE TWICE

    MEASURE TWICE Well-Known Member

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    Re: what did you do to your motor bike today?

    According to the thicknesses mentioned on Sheldon Browns website, for a cheap wrench 0.28" and a cone wrench 0.08" the difference is 0.2 inches, which I ground into dust. In a search it seems there everywhere, but in local stores.

    http://sheldonbrown.com/tooltips/conewrenches.html

    The turn buckle I will add more length to one side of the threaded 3/8 rod with the hook. I have a low profile coupler nut with two extra nuts and lock washers to attach it. This will make it clear obstructions and I will not have to temporarily remove the banana seat bars at the drop outs.

    Dumb luck I took the right hand threaded side of the coupler which is what I wanted. I have to still put finishing touches on the tensioner.

    FYI, I was in a OSH store recently and all the bags of a particular size of left hand nuts were actually just right hand nuts. The store help was going to leave them there even after he tried them also. I for the Heeel of it just brought them to the manager on the way out.

    MT
     

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    #4874 MEASURE TWICE, Jan 13, 2013
    Last edited: Jan 13, 2013
  15. fatdaddy

    fatdaddy New Member

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    Re: what did you do to your motor bike today?

    I just took a couple wrenches,(cause there are a couple sizes,) and ground them thin a long time ago. My only problem is finding them when I need them. I sometimes let my friends fix their bikes in my shop and they think they are "helping" by organizing my shop. My shop STAYS disorganized, but I know where everything is, untill someone try's to "help" me.
    fatdaddy.
     
  16. d_gizzle

    d_gizzle New Member

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    Re: what did you do to your motor bike today?

    I know there expensive but that's not a crescent wrench. Its an open ended wrench. Just so no one tries it with an actual crescent wrench.
     
  17. fatdaddy

    fatdaddy New Member

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    Re: what did you do to your motor bike today?

    Thats right d gizzle, Even a cheap chinese open end wrench will grind down and work just fine. Why spend a lot of money when you can just make one.
    fatdaddy.
     
  18. Greg58

    Greg58 Well-Known Member

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    Re: what did you do to your motor bike today?

    Sounds to me he used a crescent "brand "wrench and ground it down, I have seen the crescent brand wrenches at wal-mart.
     
  19. fatdaddy

    fatdaddy New Member

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    Re: what did you do to your motor bike today?

    Yup, thats what he did. He perhaps should have called it an open end wrench, but his pic says it all.
    fatdaddy.
     
  20. d_gizzle

    d_gizzle New Member

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    Re: what did you do to your motor bike today?

    Thanks for the clarification Greg,wasn't sure my point was getting across. I try to buy only Craftsman tools. Gotta love that lifetime guarantee. I know the workers at Sears hate it.
     

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